Toyota Sienna Service Manual: Disassembly
1. REMOVE 2ND BRAKE PISTON RETURN SPRING SUB-ASSEMBLY
(a) Place SST on the return spring and compress the return spring with a press.
SST 09387-00060
(b) Using a screwdriver, remove the snap ring.
(c) Remove the 2nd brake piston return spring.
2. REMOVE 2ND BRAKE PISTON
(a) Hold the 2nd brake piston and apply compressed air (392 kPa, 4.0 kgf/cm2, 57 psi) to the 2nd brake cylinder to remove the 2nd brake piston.
NOTICE: Hold the piston with a shop rag or a piece of cloth when removing the piston. Failure to do so may result in the piston jumping out from the cylinder.
3. REMOVE 2ND BRAKE PISTON O-RING
(a) Remove the 2 O-rings from the 2nd brake piston.
Second brake piston
COMPONENTS
...
Inspection
1. INSPECT 2ND BRAKE PISTON RETURN SPRING
SUB-ASSEMBLY
(a) Using vernier calipers, measure the free length of
the spring together with the spring seat.
Standard free length:
16.61 mm (0.6539 ...
Other materials:
Removal
HINT:
For the parking brake cable assembly No. 2, perform the
same procedure to the parking brake cable assembly No. 3.
1. REMOVE REAR WHEEL
2. REMOVE REAR BRAKE DRUM SUB-ASSEMBLY (for
Drum Type) (See page BR-37)
3. REMOVE FRONT BRAKE SHOE (for Drum Type) (See
page BR-37)
4. REMOVE REAR BRAK ...
Check component status
(a) Compare the test value with the minimum test limit
(MIN LIMIT) and maximum test limit (MAX LIMIT).
(b) If the test value is between the minimum test limit
and maximum test limit, the component is
functioning normally. If not, the component is
malfunctioning. The test value is usually sign ...
Changing engine switch modes
Modes can be changed by pressing the engine switch with the brake
pedal released. (The mode changes each time the switch is pressed.)
Off*
Emergency flashers can be used.
ACCESSORY mode
Some electrical components such
as the audio system can be used.
The engine switch indicator tu ...
